Peppermint essential oil is helpful in cases of a lack of mental concentration or mental fatigue, as it promotes mental clarity and revitalizes the spirit. Some of its benefits: -It is an excellent antidepressant and helps relieve anger, hysteria and nervous trembling. -It helps reduce symptoms of the cold as it soothes mucous membranes, has antipyretic action and promotes perspiration. -It is ideal to treat indigestion and its mild sedative action calms stomach muscles, thus it is ideal to soothe nausea, vomiting, diarrhea, colic and travel sickness. -It relieves headaches, migraine, toothache, joint and muscle pain and varicose veins. -It can be used to treat any kind of skin irritation or itch, but in concentration only 1% of the total blend. -It is also a great way to repel ants and rodents.